<template>
  <div>
    <transition :name="transitionName">
      <router-view class="child-view" v-if="$route.meta.keepAlive"></router-view>
    </transition>
    <transition :name="transitionName">
      <router-view class="child-view" v-if="!$route.meta.keepAlive"></router-view>
    </transition>
  </div>
</template>

<script>
export default {
  data() {
    return {
      transitionName: "slide-left"
    };
  },
  mounted() {
    
  },
  //监听路由的路径，可以通过不同的路径去选择不同的切换效果
  watch: {
    $route(to, from) {
      if (to.path == "/") {
        this.transitionName = "slide-right";
      } else {
        this.transitionName = "slide-left";
      }
    }
  }
};
</script>

<style lang="less">
.child-view {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  transition: all 0.3s cubic-bezier(0.55, 0, 0.1, 1);
  background: #ebedf2;
}

.slide-left-enter,
.slide-right-leave-active {
  opacity: 0;
  -webkit-transform: translate(100%, 0);
  transform: translate(100%, 0);
}

.slide-left-leave-active,
.slide-right-enter {
  opacity: 0;
  -webkit-transform: translate(-100%, 0);
  transform: translate(-100%, 0);
}
</style>
